Qlipha Crystals

Qlipha Crystals (反霊結晶クリファ,KurifaHan Rei Kesshō?) are alternate forms of Sephira Crystals, which they will transform into when Spirits enter their Inverse Form. They contain Demon Kings and serve as a Spirits' source of power while in their Inverse Form.

According to Inverse Tohka, the Qlipha Crystal appeared first when the First Spirit decided to divide her power. The Inverse Spirit speculates that she reversed their properties into Sephira Crystals in order to make them more compatible for human hosts.

Qlipha Crystals were first introduced when Artemisia Bell Ashcroft removed Nia's from her body and transferred it to Westcott.